$296 Find Cheap Flights from Ontario to Islip - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Islip departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Ontario to Islip

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Islip

Tue, Sep 1 - Sat, Sep 5
Multiple Airlines Logo
9:50 am - 9:53 am
YYZ
-
ISP
24h 03m
1 stop
Multiple Airlines Logo
7:09 pm - 9:25 pm
ISP
-
YYZ
26h 16m
2 stops
$497Multiple Airlines
Tue, Sep 1 - Sat, Sep 5
Multiple Airlines Logo
9:50 am - 9:53 am
YYZ
-
ISP
24h 03m
1 stop
Multiple Airlines Logo
7:09 pm - 8:05 pm
ISP
-
YYZ
24h 56m
1 stop
$602Multiple Airlines
Thu, Aug 13 - Sat, Aug 22
Multiple Airlines Logo
4:45 pm - 9:53 am
YYZ
-
ISP
41h 08m
2 stops
Multiple Airlines Logo
9:05 am - 10:05 pm
ISP
-
YYZ
13h 00m
1 stop
$626Multiple Airlines
Sat, Aug 8 - Fri, Aug 14
Multiple Airlines Logo
6:30 am - 7:01 pm
YYZ
-
ISP
12h 31m
2 stops
Multiple Airlines Logo
8:31 pm - 8:40 pm
ISP
-
YYZ
24h 09m
1 stop
$650Multiple Airlines
Sat, Aug 8 - Fri, Aug 14
Multiple Airlines Logo
5:35 pm - 10:30 am
YYZ
-
ISP
16h 55m
1 stop
Multiple Airlines Logo
8:31 pm - 8:40 pm
ISP
-
YYZ
24h 09m
1 stop
$729Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
3:20 pm - 6:06 pm
YYZ
-
ISP
26h 46m
2 stops
Multiple Airlines Logo
3:10 pm - 10:05 pm
ISP
-
YYZ
6h 55m
1 stop
$730Multiple Airlines
Thu, Jul 30 - Wed, Aug 19
Multiple Airlines Logo
6:00 am - 6:06 pm
YYZ
-
ISP
12h 06m
2 stops
Multiple Airlines Logo
2:16 pm - 9:40 pm
ISP
-
YYZ
7h 24m
1 stop
$736Multiple Airlines
Fri, Jul 31 - Sat, Aug 22
Multiple Airlines Logo
4:50 pm - 9:53 am
YYZ
-
ISP
17h 03m
1 stop
Multiple Airlines Logo
7:05 am - 12:00 pm
ISP
-
YYZ
4h 55m
1 stop
$740Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
7:25 am - 8:59 pm
YYZ
-
ISP
13h 34m
1 stop
Multiple Airlines Logo
3:10 pm - 10:05 pm
ISP
-
YYZ
6h 55m
1 stop
$755Multiple Airlines
Mon, Aug 3 - Sat, Aug 22
Multiple Airlines Logo
8:10 am - 8:03 pm
YYZ
-
ISP
11h 53m
2 stops
Multiple Airlines Logo
7:05 am - 12:00 pm
ISP
-
YYZ
4h 55m
1 stop
$771Multiple Airlines
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Good to know

Cheapest flight$296
Flight from Montreal to Islip

FAQs for booking flights from Ontario to Islip

  • How does KAYAK find such low prices on flights from Ontario to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Islip (ISP)